Where does At &.T face difficulties in particular?
A.NationwidE.
B.Overseas.
C.In large cities.
D.In remote towns.

A.T
B.NationwidE.
B.Overseas.
C.In
C.
D.In

【参考答案】

C
解析：细节陈述题。由“AT&T has acknowledged that it has faced som......

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